59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package storage
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import (
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"context"
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"fmt"
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)
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// NextKey returns the successive key.
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func NextKey(key Key) Key {
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return append(CloneKey(key), 0)
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}
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// AfterPrefix returns the key after prefix.
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func AfterPrefix(key Key) Key {
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after := CloneKey(key)
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after[len(after)-1]++
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return after
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}
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// CloneKey creates a copy of key.
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func CloneKey(key Key) Key { return append(Key{}, key...) }
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// CloneValue creates a copy of value.
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func CloneValue(value Value) Value { return append(Value{}, value...) }
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// CloneItem creates a deep copy of item.
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func CloneItem(item ListItem) ListItem {
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return ListItem{
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Key: CloneKey(item.Key),
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Value: CloneValue(item.Value),
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IsPrefix: item.IsPrefix,
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}
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}
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// CloneItems creates a deep copy of items.
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func CloneItems(items Items) Items {
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var result = make(Items, len(items))
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for i, item := range items {
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result[i] = CloneItem(item)
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}
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return result
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}
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// PutAll adds multiple values to the store.
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func PutAll(ctx context.Context, store KeyValueStore, items ...ListItem) (err error) {
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defer mon.Task()(&ctx)(&err)
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for _, item := range items {
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err := store.Put(ctx, item.Key, item.Value)
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if err != nil {
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return fmt.Errorf("failed to put %v: %w", item, err)
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}
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}
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return nil
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}
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